Crusher



H. H. RUMPEL June 18, 1929.

CRUSHER 2 Sheets-Sheet l Filed Aug. 22, 1927 INVENTOR H. H. RUMPEL June 18, 1929.

CRUSHER Filed Aug. 22, 1927 2 Sheets-Sheet 2 uni w v V INVENTOR 5 is attached to the concave ring, so that Patented June 18, 1929.

' UNITED STATES'YPATENT JOFFI'CE.

HARVEY H. RUMIEEL, OF MILWAUKEE, WISCONQIN, ASSIGNOR T SMITH ENGINEER- ING WORKS, OF MILWAUKEE, WISCONSIN, A CORIEORATION OF WISCONSIN.

CRUSHER.

Application filed August 22, 1927. Serial No. 214,643.

This invention relates to improvements in crushers of the form wherein an eccentric rolling motion is imparted to the crushing head.

One of the objects of the present invention is to provide a crusher in which the crusher head has a rolling eccentric motionand' the coacti'ngrelatively fixed crushing member or concave is arranged to yield under undue pressure.

A further object of the invention is to provide a crusher in which the crusher head is mounted on 'a crank shaft of angular formation to impart an eccentric rolling motion to the head and the shaft is supported in a plurality of bearings arranged ,tb take both radial and endwise crushing pressures.

A further object of-the invention is to provide a crusher in which the outer crushing member is carried in,a ring and the ring is surrounded by a housing provided with means for raising and lowering said outer crusher member and ring, and also for clamping said housing firmly to said ring at any 2 desired position.

.A further object of the invention is to pro vide a crusher in which the housing is flex- 'ibly connected to the main frame bya ball and socket joint to permit a free sliding mo- 0 tion at point opposite point of liftof concave or outer crushing member.

A further object of the invention is to provide a crusher in which the housing is formed with a flange which overhangs an inwardly flaring flange of the concave, and also in which the parts permit the insertion of shims of Varying thickness toadjust position of parts and also the insertion of a guard ring to prevent dust entering the shim compart-.

4o ment. 7

A further object of the invention is to provide a crusher having a concave ring connected to the housing by bolts in such a manner as to eliminate crushing strain on the bolts.

A further object of the invention is to provide a crusher having an adjustable crusher housing split at a plurality of points and having lugs on opposite sides of the splits, and bolts passing through the lugs, for rigidly clamping the concave ring in position.

A further object of the invention is to provide a ,crusher having the upper portionof the main frame finished and engaged by a "strip o-f-flexible material held by a ring which when adjustment takes place or the concave tilts, dust cannot enter bet-ween hearing or engaging parts.

A further object of the invention is to provide a crusher in which all split portions of the concave housing are filled with a flexible packing to prevent dust from entering betweenthe concave ring. and adjustable houslng or around the adjustable shims.

A further object of the invention is to provide a crusher *in which the axial line of the upper eccentric portion of the crusher shaft intersects tlt axial line of the main portion of the sha at a point above the crusher head. a I

. further object of the'invention is to provide a crusher in which the bearing retainer in the head is rigidlyattached to the head by means of a tapered'fit and held in position by a series of screws.

A further object of the invention is to provide a crusher in which the bearing retainer of the head has a lower curved surface which is formed on an arc whose radius coincides 1 with theinterseetion lines of the shaft- -por tions.

A further object of the invention is to provide a crusher in which a, ring is yieldingly connected to the main frame and yieldingly bears against the convexed portion of the head to wipe oil from the bearing and to pre- Vent dust entering same.

A further ob ect of the invention is to provide a crusher head having a mantle of wear resisting material and formed with a downwardly and outwardly extending deflecting flange below the crushing surfaces to eliminate wear; on adjacent parts caused by crushed material striking thereagainst.

A further object of the invention is to provide a crusher in which oil for lubricating the main bearings isintroduced through a tubularportion of the crushing shaft by means of a yielding member which yieldingly bears against the lower end portion of the sha'ft.

A further object of the invention is toprovide a crusher which is of simple construction, is strong and durable and is well adapted for'the purpose described.

With the above and other objects in view, the invention consists of the improved crusher, and its parts and combinatiofis as thereof. I 3

' A coiled spring 21 holds the connecting mem- In the accompanying drawings in which I the same reference characters indicate the same parts in all of the views:

Fig. 1 is a vertical sectional view through the improved crusher; and

Fig. 2 is a top view thereof. Referring to the drawings, the numeral 5 1 indicates a frame or casing which is of cylin drical form and is'formed with an upper and outwardly extending rounded flange 6. The

casing is also formed with an inner bearing or hub portion 7 connected to the outer portion by radial ribs 8. A; vertical crusher shaft '9 extends into the hub portion 7 and is j ournaled i1; upper and lower conical roller bearings 10 and 11 positioned within the hub lower portion of the inner hub. Nuts 10' threaded on one of the stepped portions of the crusher shaft 9 hold the inner bearing sleeves 10 firmly on the shaft and against the shoulder 9. The shaft is formed with an oil bore 15 which extends lengthwise through the shaft and at its lower end is of tapered formation, as indicated by the numeral 15 to receive the upper tapered end portion 16 of a yielding tubular connection 17. Said connection is slidably mounted in aca member 18 connected to thelower end of t e inner hub.- The cap member has a threaded bore 19 for connection with a source of oil supply and said bore is in communication with the bore of the tubular connection 17 to supply oil therethrough. The yielding connection permits vertical adjustment of the'crusher shaft 9 while maintaining an oil tight joint between the connection and the shaft, and the connection is provided with I piston rings 20 to form a similar joint between the connection and the cap member.

ber 17 yicldingly in its upper position.

A bevel gear 22 is keyed to the shaft between the roller bearings 10 and 11, and is in mesh with a bevel gear 23 mounted on the inner end of a horizontal driving shaft 24. Said shaft is journaled in roller bearings 25, and its outer end which projects outside of the casing carries a belt wheel 26 for connection with a source of power (not shown).

The'upper end portion of the crusher shaft is of cranked formation, as indicated .by the numeral 27, with the cranked portion extending upwardly, inwardly at an oblique angle towards the axis of the main portion of the shaft, so that the axial line of the obliqufely cranked portion intersects, the axial line of the main portion at a point above the crushing head 28 of the machine. The lower inner portlon of the head 28 is recessed to receive a roller bearing 29 which is secured thereto by screws30, and the inner sleeves 31 forming portions of said hearing are mounted on the obliquely cranked portion of the shaft by a plate 32 which is held onthe upper end of the shaft by screws 33. The plate 32 clamps the bearing sleeves 33 firmly in position against the annular shoulder 34 formed on the lower part of the obliquely cranked portion. This roller bearing is also of the lateral and end thrust type. The lower portion 35 of the bearing is of convex shape formed on 'a radius coincident with the axial lines of intersection of the shaft portions, so that a yielding collar 36 of concave form and bearing against said convexed portion will form a dust proof sliding connection therewith. The lower portion of the collar 36 is formed with an annular groove 37 to slidingly receive the annular rib 38 extending upwardly from the bearing 12. Coiled springs 39 which are interposed between the collar 36 and the bearing 12 yieldingly hold the collar against the bearing 35. i

A frustra-conical mantle 40 of wear resisting material snugly fits over the head 28 and is clamped thereto by a screw-41 which extends through the apex of the mantle and threads into the head 28, as clearly shown in Fig. 1. A key 42 extends through the screw and into the head to lock the screw in position, and a smaller screw 43 threads into the upper portion of the screw 41 with its head bearing against the upper end of the key 42 holds said'key in position and also forms a rounded top for the mantle. The lower peripheral portion of the mantle is formed with a downwardly and outwardly extending radial flange 44 positioned below the crushing area and is adapted to deflect the crushed material to the outer portion of the enclosing frame where it will freely fall through the discharge opening 45. The flange also serves to deflect the crushed material away from the roller bearings of the crusher shaft and head. An upper housing or frame 46 is formed with an annular rounded flange 47 which extends over and engages the upper rounded flange 6 of the main frame. Bolts 48 extending downwardly through both flanges 6 and 47, and also through a floating ring 49 which surrounds the main frame 5, are provided with gether of the upper portions, and transverse bolts 52 which extend-through'the split portions draw the two parts into clamping engagement with the upperor concave frame member 53 around which it extends. The ortion of the concave member surrounded ythe housing is of cylindrical form, and is provided with an inwardly extended annular flange 54 for receiving segmental shims "55 which are placed at spaced intervals arourid the flange and between the flange and the housing to adjust the height of the concave ment when worn. The lugs 59 extend into. recesses 53 formed in the concave member 53.

The lower contacting faces 58 of the member 58 and the member 53 are ground or machined to space the lugs 59' from the walls of the recesses 53', and said spaces are filled with pieces of wood 65 or other easily compressible material as wood, to permit drawing the bolts tight in the event that the zinc packing material should give way. The lOWer portion of the concave member 53 is provided with an apron 60 having a yielding ring packing 61 mounted on its lower edge which ,bears against the inner wall of the casing 5 to slidingly seal the connection therebetween. The upper inner portion of the concave member flange 54 is provided with an upstanding collar 62 against gvhieh the inner upper edges of the housing car.

A feed spout 63 is mounted within a cylindrical support (it which in turn is connected to the upper portion of the concave member. Said spout is of funnel shape to direct the material towards the central portion of the crusher head. All space between parts where dust or crushed material may gather, are filled with zinc, rubber or other packing material 65 to protect said parts.

In operation, the material to be crushed, is fed to the machine through the feed spout, and is crushed between the head and the concave. Due to the obliquely extending eccentric portion of the crusher shaft, which carries the crusher head, the rotation of the crusher shaft will cause the crusher head to turn in a path eccentric to the concave, so that portions of the head in moving closer to the concave will crush the material therebetween, and the head will be rotated by engagement with the material. If the crushing space between the'two crushing members is overloaded with material, or lumps of material too hard to be crushed get into the said space, the increased pressurewillovercome the pressure of the concave member springs and permit the concave 7 member to tilt upwardly and enlarge the space, and the material will then drop freely from between the crushing members, and said concave member will then assume its regular crushing position as shown. a

From the foregoing description, it will be seen that the crusher is of very simple construction, and is well adapted for the purpose described. 7

What I claim asmy invention is:

1. A crusher, comprising a lower frame, a vertical shaft journaled therein and having an upper obliquely extending eccentric .end portion, bearings for the shaft,ia crusher head loosely journaled on the eccentric por' tion and projecting above the upper end portion of said shaft, means for rotating the' shaft, a concave memberextendingaround the crusher headin spaced relation, and means for yieldingly holding the concave member in position.

2. A crusher, comprisinga lower frame, a vertical shaft journaled therein and having an upper obliquely extending eccentric end portion, spaced bearings for the vertical portion of the shaft, a bevel gear mounted on the shaft between the bearings, a horizontal shaft having a bevel pinion in mesh with the gear, a horizontal shaft journaled in the frame and upon the inner end of which the pinion is mounted, means for connection with a source of motion mounted on theouter end portion of the horizontal shaft, an-upper'housing yieldingly rest-ing upon the frame, a crusher head journaled'on the eccentric portion of the vertical shaft and projecting above the upper end portion of said shaft, and a concave crushing member carried bythe upper housing-and surrounding the crusher head. a

3. A crusher comprising a lower stationary frame, a vertical shaft therein and having an upper obliquely extending eccentric end portion, a crusher head journaled on said end portion and projectin above the upper end portion of said shaft, an upper housing yieldingly mounted on. the frame, a concave crusher member carried by the upper housing and surrounding the crusher head, and bearings for said vertical shaft for receiving both radial and endwise crushing pressures during'thecrushing operation.

4. A. crusher, comprising a lower stationary frame, a vertical shaft therein and having an upper obliquely extending eccentric end portion, the axial line of the eccentric portion intersecting theaxial line of the main portion of the shaft at a point above the upper end of the eccentric portion, a crusher head journaled on said eccentric portion and projecting, above the upper end portion of said shaft, an upper housing yieldingly and tiltably mounted ,on the pressure during tion.

ing an upper obliquely extending eccentric end portion, the axial line of the eccentric portion intersectin the axial line of the mam portion of the shaft at a point above the upper end of the eccentric portion, a crusher head journaled' on the eccentric portion and projecting above the upper end ortion of said shaft, an upper housing yiel ingly and tiltably mounted on the frame, a concave member vertically adjustably mounted in the upper housing, a concave crusher member carried by the concave member and surrounding the crusher head, spaced bearings for said vertical shaft for receiving-both radi'al v and endwise crushing-pressure during the crushing operation, and means for driving the vertical shaft.

6. A crusher, comprising a lower stationary frame, a. vertical shaft therein and having an upper obliquely extending eccentric end portion, the axial line of the eccentric portion intersectin the axial line of the main portion of the sha t at a point above the upper. end of the eccentric portion, a crusher e'ad journaled on'the' eccentric portion and projecting above the upper end portion of said shaft, an upperhousmg'yieldingly and tiltably mounted onthe frame, a concave membervertically adjustably mounted in the upper housing, a concave crusher member carried by the concave member and surrounding the crusher head, spaced bearings for said vertical shaft for receiving both radial and endwise crushing pressure during the crushing operation, a bevel gear mounted on the vertical shaft between the spaced bearings, a

horizontal shaft journalcd in the main frame and having a bevel gear on its inner end or t-ion which is in mesh with the vertical shaft gear, and means on the outer end portion of the horizontal shaft for connection with a source of power.

7. A crusher, comprising a lower sta--' 'tionary frame having spaced roller bearings,

. a vertical shaft journaled in said bearings centric end portion, the axial line of which intersects the axial line of the main portion of the shaft at a point above the upper end of the eccentric portion, a crusher head surrounding the eccentric portion, lateral and end thrust roller bearings interposed between the crusher head and the eccentric shaft portion, the lower portion of the head being curved on a radial linecoincident with the point of intersection of the axial lines a yielding member engaging said curved portion, the upper portion ofthe stationary frame being of rounded formation, an upper housing having a lower curved portion which engages the rounded formation portion of the main frame, coiled springs holding the housing yieldingly in engagement with the mainframe, a concave crusheYm ember adjustably carried by the-housingand surrounding the crusher head, a bevel gear mounted on the vertical shaft'between the spaced bearings, a horizontal shaft journaled inthe mainframe and having a bevelgear on its inner end portion which is in mesh with the vertical shaft gear, and means on the outer end portion of the horizontal shaft for connection with a source of power.

8. Acrusher, comprising a lower stationary frame having spaced roller bearings, a vertical shaft jou-rnalcd in said bearings and having an upper obliquel extending ee entric end portion, the axial line of "which ntersects the axial line of the main portion of the shaft at a point above the upper end of the eccentric portion, a crusher head surrounding the eccentric portion, lateral and end thrust roller bearings interposed between the crusher head and the eccentric shaft portion, the lower portion of the head being curved on a radial line coincident with the point of intersection of the axial lines, a yielding member engaging said curved por-- tion, the upper portion of the stationary framebeing of rounded formation, an upper housing having a lower curved portion which engages the rounded formation portion of the main frame, coiled springs holding the housing yielding in engagement with the main frame, a fi oating ring surrounding the main frame and engaged by the lower end portion of the springs, a concavecrusher member adjustably carried by the housing and surrounding the crusher head, a bevel gear mounted .on the vertical shaft between the spaced bearings, a horizontal shaft journaled in the main frame and having a bevel gear on its inner end portion which is in mesh with the vertical shaft gear, and means on the outer end portion of the horizontal shaft for connection with a source of power. a

frame of circular form and having an upper rounded edge and an inner hub portion, and having an upper obliquely extendlng ec of which intersects the axial line of the main portion of the shaft at a point above the upper end of the eccentric portion, a.

crusher head surrounding the eccentric por-' t10n, lateral and end thrust roller bearings eccentric shaft portion, thelower portion fof the head being curved on a radial line coincrusher, comprising a stationary interposed between the crusher head and the cident with the point of intersection of the axial lines, a ring member yieldingly mounted on the inner hub portion and engaging the lower curved portion of the head, an' upper houslng having a lower annular recessed portion, curved in cross section for receiving the upper rounded edge of the stationary frame,a bolts extending through the upper housing and loosely through the main frame, a fioating ring member surrounding the main frame and to which the bolts are connected,

coiled springs surrounding the bolts and interposed between the floating ring and the main frame for holding the housing tiltably in position, a concave crusher memberadjustably carried by the housing and surrounding the crusher head, and means for rotating the vertical shaft.

11. crusher, comprising a stationary -fram'of circular form and havingan up er 10. A crusher, comprising a stationary frame of circular form and having an upper rounded edge and an inner hub portion, lateral and end thrust bearings within the hub portion, a verticalshaft journaled 'infsaid earings and having an upper obliquely extending eccentric end portion, the axial line of which intersects the axial line of the main portion of the shaft'at a point above the upper end of the eccentric portion, a crusher head surrounding the eccentric portion, lateral and end thrust roller bearings interposed between the crusher head and the eccentric shaft portion, the lower portion of the head being curved on a radial line coincident with the point of intersectionof the axial lines, a ring member yieldingly,.mounted on the innen hub portion and engaging the lower curved portion of the head, an upper;

housing having a lower annular recessed por-p tion, curved in cross section for receiving the upper rounded edge of the stationary frame, bolts extending through the upper housing and loosely through the main frame, a floating ring member surrounding the main frame and to which the bolts are connected, coiled springs surrounding the-bolts and interposed between the floating ring and the main frame for holding the housing tiltably in position,

head, a bevel gear mounted on the vertical shaft bet-ween the bearings, a horizontal shaft journaled; in the main frame and'having a bevel gear on its inner end por ion which is in mesh with the vertical sha t gear, and means on the outer end portion of the horizontal shaftfor connection with a source of power.

rounded edge and an inner hub portion, at-

' eral and end thrust bearings within the hub portion, a vertical shaft Journaled in said earings and having an upper obliquely extending eccentric end portion, the axial line of which intersects the axial line of the main por tion of the shaft at a point above the upper end of the eccentric portion, a crusher head surrounding the eccentric portion, lateral and end thrust roller bearings lrfterposed between the cru sher head and the eccentric shaft portion, the lower portion of the head being curved on a radial line coincident with the point of intersection of the axial lines, a ring 1 member yieldingly mounted on the inner hub portion and engaging the lower curved portion of the head, an upper housing having a lower annular recessed portion, curved in cross section for receiving the upper rounded edge of the stationary frame, bolts extendingthrough the upper housing and loosely through the main frame, a floating ring member surrounding the main frame and to which the bolts are connected, coiled springs surrounding the bolts andinterposed between the floating ring and the main frame for holding the housing tiltably in position, a concave crusher member adjustably carried by the housing and surrounding the crusher head, means permitting the insertion of shims between the upper housing, and the concave crushing member, and means for rotating the vertical shaft. p 2

12. A crusher, comprising a lower sta tionary frame, a vertical shaft therein and having an upper obliquely extending eccentric end portion, the axial line of'the eccentric portion intersecting the axial line of the main portion of the shaft at a point above the upper end of the eccentric portion, a

crusher head journaled on the eccentric portion, an upper housing yieldingly and tiltably mounted on the frame, means permitting the insertion of shims between the upper housmg and the-concave crushing member, a concave member vertically adjustably mounted radial and endwise crushing pressure during the crushing operation, and means for driv= ing the vertical shaft. a concave crusher member adjustably carried bythe housing and surrounding the crusher 13. A crushercomprising a lower stationary-frame having a central upwardly extending bearing part, a vertical shaft jourwith a downwardly extending annular flange for protecting the bearing of the head, an upperhousing yieldingly mounted on the frame, a concave crusher member carried by .the upper housing and surrounding the crusher head, and bearings for said vertical shaft for receiving both radial and endwise crushing pressures duringthe crushingoperation. 5 i

14. A crusher, comprising a lower stationary frame having a central upwardly extending bearing part, a vertical shaft journaled therein andthaving an upper obliquely extending eccentric end portion, the axial line of the eccentric portion intersecting the axial line oflthemain portion of the shaft at. a point above the upper end of the eccentric portion, a crusher head journaled on I said eccentric portion, a mantle forming part of the head and having a downwardly extending annular flange for protecting the bearing of the crusher head, an upper housring yieldingly and tiltably mounted on the frame, a concave crusher member carried by the upper housing and surrounding the crusher head, and bearings for said vertical shaft for receiving both radial and endwise crushing pressure during the crushing operation.

' 15. A crusher, comprising a lower stationary frame, a vertical shaft therein and hav-.

'ing an upper obliquely extending eccentric end portion, said shaft having an oil. bore throughout its length, a yielding means onthe lower end portion of the vertical gagin for supplyin a lubricant to the bore shaft thereof, a crusher head journaled on said end portion, an upper housing yieldingly mounted on the frame, a concave crusher member carried by the upper housing and surrounding the crusher head, and bearings vforsaid vertical shaft for receiving both radial and endwise' crushing pressures during the crushing operation.

16. A crusher, comprising'a lower stationary frame, a vertical shaft therein and hav-v ing an upper obliquely extending eccentric end portion, the axial line of the eccentr c portion intersecting theaxial'line-of the main portion of the shaft at a point'above the upper end of the eccentric portion, a crusher head journaled on said eccentric portion, aniantle forming part of the head and-having a downwardly extending annglar flange for protecting the bearing of the crusher head, an upper housing tiltably mounted on the frame, and having a split clamping portion,

a concave crusher member clamped to and carried by the upper housing and surround- Y 18. A. crusher part, comprising a concave frame having inner recessed portions, a concave grinding member within the concave frame member and havin radial lugs which extend 'nto the recesses but out of contact with the walls thereof, bolts extending through the lugs and portions of concave frame, and compressible material interposed between portions ofthe walls of the recesses and the lugs, said compressible material and Eolt connection permitting the concave memer to yield vertically. In testimony whereof, I aiiix my signature.

i irARvEY H, RUMPEL. 

